| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.drill.exec.rpc.user; |
| |
| import io.netty.buffer.DrillBuf; |
| |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import org.apache.drill.exec.proto.UserBitShared.QueryData; |
| |
| public class QueryDataBatch { |
| // private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(QueryDataBatch.class); |
| |
| private final QueryData header; |
| private final DrillBuf data; |
| private final AtomicBoolean released = new AtomicBoolean(false); |
| |
| public QueryDataBatch(QueryData header, DrillBuf data) { |
| // logger.debug("New Result Batch with header {} and data {}", header, data); |
| this.header = header; |
| this.data = data; |
| if (this.data != null) { |
| data.retain(1); |
| } |
| } |
| |
| public QueryData getHeader() { |
| return header; |
| } |
| |
| public DrillBuf getData() { |
| return data; |
| } |
| |
| public boolean hasData() { |
| return data != null; |
| } |
| |
| public void release() { |
| if (!released.compareAndSet(false, true)) { |
| throw new IllegalStateException("QueryDataBatch was released twice."); |
| } |
| |
| if (data != null) { |
| data.release(1); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "QueryResultBatch [header=" + header + ", data=" + data + "]"; |
| } |
| } |